WoW Character Race Demographics

Younger players tend to prefer being Trolls and Undead, while older players prefer being Orcs and Dwarfs. Interestingly, 3 Horde races have the lowest average age - Orc being the exception.

Night-Elves and Gnomes significantly more likely to be played by a female player. Orcs and the Undead are more likely to be played by a male player.

An overview of the motivation differences among players who prefer different character classes is shown below, followed by the detailed charts for each motivation. Only those motivations that were significant in an ANOVA are listed. What's interesting is the repeated differences between the Gnome/Dwarf vs. the Undead/Tauren.